Louisiana Unlikely to Join Romney Parade

MARRERO, La.—Republican leaders are increasingly closing ranks behind Mitt Romney as their party's presidential nominee. But when this state goes to the polls on Saturday, expectations are high that it will register a note of dissent.

This is likely to be Rick Santorum territory, a state where household income is relatively low and the share of conservative voters is high, similar to other states where the former Pennsylvania senator has claimed victories, such as Mississippi, Alabama, Tennessee and Oklahoma.